Kennedy, son of former Rep. Joseph P. Kennedy II, used a video on his campaign website to lay out his platform, detail his credentials and play up his last name, ahead of the Democratic primary in the state's 4th Congressional district.FULL POST

Joseph P. Kennedy III, son of former Rep. Joseph P. Kennedy II, announced his plans Thursday to explore a run for the 4th congressional district in Massachusetts, soon to be vacated by retiring Democratic Rep. Barney Frank.FULL POST

Joseph Kennedy III said Monday that he would not run for statewide office in 2010.

(CNN) - Joseph P. Kennedy III, the 29 year-old grandson of Robert Kennedy, has closed the door on a potential 2010 congressional bid, the latest member of the Kennedy family to forgo a bid for state-wide office.

Kennedy, whose father Joseph P. Kennedy II, was a six-term Congressman from Massachusetts, had been widely floated as a possible replacement to current Rep. Bill Delahunt, should Delahunt decide to retire.

Speaking to the Boston Globe, Kennedy, a recent Harvard Law School graduate, said he enjoys his current post as assistant district attorney covering the state's Cape Cod region.

"I think that we've got a great congressman. He continues to serve the people of the 10th District well," he said. "I'm a longtime supporter of his, and I hope he runs again."